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Trees Are So Weird

Kurzgesagt – In a Nutshell | December 28, 2025



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Sources & further reading:
https://sites.google.com/view/sources-treesaredead/

Trees are among the most extreme and successful forms of life on Earth. They build their bodies from thin air, move water with pressures that would crush a human, and grow using a fascinating system of living cables wrapped in layers of corpses. Under their bark lies a razor-thin strip of living cells, working endlessly to move water hundreds of meters, build indestructible wood, and coordinate millions of functions.
How do trees work, and what are they even made of? What makes these ancient giants so resilient, and maybe even immortal?

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Written by Kurzgesagt – In a Nutshell

Comments

This post currently has 34 comments.

  1. @TheGroundskeeper

    December 28, 2025 at 8:05 pm

    The forests of the United States are growing in size, the only first world nation to claim such truth, a testament to American commitment to the environment without the need for international politics. Others argue, we do.

  2. @ArthurKLEIN-e9o

    December 28, 2025 at 8:05 pm

    References about pop culture, like Gibli or Zelda are really good.
    The drawings are also so amazing, and good job to the drawer.
    The video is really interesant and the manner to explain it is really good.

  3. @composerdoh

    December 28, 2025 at 8:05 pm

    @2:15 "one day round 385 million yrs ago.." evolution doesn't work that way. That's like saying "then one day 15 years ago, I woke up and I was old." You're not "young" on Monday and then Tuesday you're "old." In the same way, evolution doesn't make something just "appear" in or on "one day" (sorry to be "that guy"- I'm sure you were speaking euphemistically, but some people get the impression evolution actually DOES work like that.)

  4. @purpleketty

    December 28, 2025 at 8:05 pm

    Can you make a video breaking down fungi? I think its a very interesting topic! Or maybe slime molds and why they are able to solve mazes and why they merge when food is scarce?

  5. @SteveAfton-s5v

    December 28, 2025 at 8:05 pm

    I have a question. If a tree is immortal due to constant regeneration, can't we make an infinite wood source to burn? And I know that there are some wood types that do not smog… if you are such an eco-nitpick.

  6. @PiperJones-s3t

    December 28, 2025 at 8:05 pm

    I swear to gawd I dreamt that exact same thing at around the 2:30 mark. I was the the essence of the tree, attempting to figure out how tf I'm supposed to get from the top to the bottom and reverse. Holy phuq it was wild.

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